CURRENT BAND CONDX = Solar-terrestrial indices for 23 November follow. Solar flux 72 and estimated planetary A-index 9. The estimated planetary K-index at 0900 UTC on 24 November was 2. No space weather storms were observed for the past 24 hours. No space weather storms are predicted for the next 24 hours.

ALERT CONDITION: WHISKY ( WHITE )

Friday, November 24, 2017 - 10:46 GMT - UPDATE # 22

OPERATIONAL FORECAST. - GEOMAGNETIC FIELD. The geomagnetic field is expected to be at quiet to unsettled levels on day one (24 Nov). Mostly quiet levels are expected on days two and three (25-26 Nov) under a nominal solar wind environment. .- SOLAR ACTIVITY. Solar activity is expected to be at very low levels for the next three days (24-26 Nov).

G/S/R SCALES USED     DEF'S USED     LIGHTNING - (QRN)


HF OPERATIONAL BRIEFING - CURRENT CONDITIONS IN DETAIL

CURRENT SOLAR CONDITIONS


VISIBLE DISK

 


SOLAR MAGNETOGRAM

 


NEAR INFRARED

 


SUNSPOT TRACKING

 

Solar activity was very low. The visible disk was spotless. No Earth-directed CMEs were observed in available coronagraph imagery.


RADIO BLACKOUTS - SOLAR STORMS - GEOMAGNETIC STORMS

The geomagnetic field was at quiet to unsettled levels.


"D" LAYER - HF ATTENUATION LEVELS


AURORA  -   NORTH POLE  - SHORT PATH